What dispute deadlines should providers track in Idaho?

Accident Notice: Notice to insurer as soon as reasonably practicable; MedPay Claim Submission: Submission within standard policy billing deadlines (typically 1 to 3 years); Clean Claim Payment Window: 30 calendar days from receipt of clean claim (Idaho Code § 41-1335). Verify the trigger date, current agency notices, and any extension before acting.

Which agencies administer these rules in Idaho?

The guide identifies Idaho Department of Insurance (DOI). The correct agency depends on the plan and claim jurisdiction.

Auto Accident, PIP & Medical Billing State Guides

Idaho Auto Accident, PIP & Medical Billing Laws

Idaho operates an At-Fault automobile insurance framework under Title 41 and Title 49 of the Idaho Code. The state follows modified comparative negligence with a 50% bar under Idaho Code § 6-801. Medical providers bill optional first-party Medical Payments (MedPay) and protect receivables by filing statutory medical and hospital liens with the county recorder under Idaho Code § 45-701.

Accountability & Review

Reviewed by Millennova Legal Operational Integrity Team, Senior Audit and Arbitration Analysts

Last Reviewed

2026-03-01

Plain-language overview

At-Fault / Traditional Tort (Modified Comparative Fault & Idaho Medical Lien Act)

Idaho does not mandate Personal Injury Protection (PIP) insurance. Medical costs resulting from motor vehicle collisions are funded through optional first-party Medical Payments (MedPay) coverage, private health insurance, or third-party automobile liability insurance. Under Idaho Code § 6-801, an injured person may recover damages only if their negligence was less than the negligence of the person against whom recovery is sought. Healthcare providers and hospitals enforce statutory medical liens on third-party settlements under Idaho Code Chapter 45-7.

PIP and MedPay coverage

Optional Med Pay Coverage

MedPay is optional in Idaho (commonly written in limits of $1,000 to $10,000+ per person), providing no-fault reimbursement for reasonable medical, surgical, dental, hospital, and ambulance expenses resulting from an automobile accident

Made Whole Doctrine

Under Idaho common law, an insurer's right of subrogation for MedPay benefits is subordinate to the Made-Whole doctrine, preventing recovery from a third-party settlement until the insured's total damages are satisfied

Assignment Of Benefits

Healthcare providers routinely obtain patient assignments of MedPay benefits for direct claims submission to automobile insurers

Medical fee schedule and reimbursement rules

Name

Reasonable and Customary Fee Standard

Rules

Idaho does not enforce a statutory fee schedule table for motor vehicle accident medical bills outside of workers' compensation. Providers bill based on reasonable and customary charges prevailing in the local medical community for comparable care.

Cpt Basis

CPT/HCPCS itemized coding on standard CMS-1500 or UB-04 billing claims

Preauthorization and utilization review

Requirement

Preauthorization is not required by statute for emergency trauma stabilization or initial acute management. Elective surgical interventions and prolonged physical therapy regimens are evaluated under insurer medical necessity guidelines.

Carrier Examinations

Under standard auto policy terms, insurers may request medical records or independent physician reviews to evaluate causal relationship to the motor vehicle collision.

Appeals and dispute resolution

Prompt Payment Statute

Under Idaho Code § 41-1335, insurers must pay clean claims within 30 calendar days of receipt. Claims not paid within 30 days accrue statutory interest from the date the claim became overdue.

Medical Provider Lien Act

Under Idaho Code § 45-701 et seq., hospitals, physicians, and ambulance providers have a statutory lien upon personal injury claims, settlements, and judgments for reasonable medical charges. The lien must be recorded with the county recorder of the county where services were rendered within 90 days after discharge or treatment, and notice must be served on the patient and liability insurer.

Dispute Forum

Idaho District Court (or Magistrate Division for claims within jurisdictional limits) for civil recovery actions.

Claim and dispute deadlines

Deadlines can depend on the trigger event and may be affected by agency relief notices. Confirm the live rule before filing.

Event	Timeframe
Accident Notice	Notice to insurer as soon as reasonably practicable
MedPay Claim Submission	Submission within standard policy billing deadlines (typically 1 to 3 years)
Clean Claim Payment Window	30 calendar days from receipt of clean claim (Idaho Code § 41-1335)
County Recorder Lien Filing	Must be recorded with county recorder within 90 days of discharge or treatment (Idaho Code § 45-702)
Statute of Limitations	2 years from accident date for personal injury tort claims (Idaho Code § 5-219(4)); 5 years for written contracts

Documentation checklist

Idaho MedPay Claim Application Form
Executed Assignment of Benefits (AOB) and medical records authorization
Itemized CMS-1500 or UB-04 billing form with CPT/HCPCS codes and ICD-10 diagnostic coding
Contemporaneous medical records, emergency intake documentation, operative reports, and imaging findings
Recorded Notice of Medical Lien with county recorder recording stamp (Idaho Code § 45-702)
Insurer Explanation of Benefits (EOB) or written explanation of claim determination

Responsible agencies

Idaho Department of Insurance (DOI)Statewide Regulation of Auto Insurers, Rate Filings & Consumer Inquiries

Primary legal and regulatory sources

Idaho Code Title 45, Chapter 7 (Medical and Hospital Liens)Idaho State Legislature · 2024
Idaho Code Title 41, Chapter 13, Section 41-1335 (Prompt Payment of Claims)Idaho State Legislature · 2024

This operational reference is educational, is not legal advice, and does not create an attorney-client relationship.

Common questions

What rules govern auto accident, pip & medical billing state guides in Idaho?: Idaho operates an At-Fault automobile insurance framework under Title 41 and Title 49 of the Idaho Code. The state follows modified comparative negligence with a 50% bar under Idaho Code § 6-801. Medical providers bill optional first-party Medical Payments (MedPay) and protect receivables by filing statutory medical and hospital liens with the county recorder under Idaho Code § 45-701.
What dispute deadlines should providers track in Idaho?: Accident Notice: Notice to insurer as soon as reasonably practicable; MedPay Claim Submission: Submission within standard policy billing deadlines (typically 1 to 3 years); Clean Claim Payment Window: 30 calendar days from receipt of clean claim (Idaho Code § 41-1335). Verify the trigger date, current agency notices, and any extension before acting.
Which agencies administer these rules in Idaho?: The guide identifies Idaho Department of Insurance (DOI). The correct agency depends on the plan and claim jurisdiction.